What is hanging out of my fish

[Glene20]

I noticed my female betta had this yellow thing under belly. Is this a parasite?

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[Glene20]

Heres a picture of it

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[SFAquariums1]

It looks like poop to me


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[courtanee]

It does look like feces. But it isn't a good color... What have you been feeding her? Has she been acting normal?

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